Screen Exposure

I play about 8-12 hours of World of Warcraft a day just playing praying no one will bother me in the outside world.

might this make me more aggressive?
might it make me dumber?

will it improve my hand-eye coordination?

will it damage my mental health?
will it damage my eyesight?

aside from addiction, i want to know what medical reasons are there for restricting my play time.

please respond.

i can speak from experience... it will give you eye strain, and may damage your eyes a little, but nothing TOO serious... It will also give you headaches and sensitivity to light. As for the BRAIN... i dont know.. it may make you stupid, since your wasting all that time that you could be learning... (depending on your age) It could also hender your social abilities which are very important.

yes, it will improve your hand eye coordination, very little tho.... not the same as playing basketball or other sports/activities...